| 吡虫啉在稻田水环境中的残留动态 |
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| 引用本文： | 郑岚,王梅,段劲生,胡本进,孙明娜,张勇,高同春. 吡虫啉在稻田水环境中的残留动态[J]. 安徽农业科学, 2011, 39(15): 8994+9008-8994,9008 |
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| 作者姓名： | 郑岚 王梅 段劲生 胡本进 孙明娜 张勇 高同春 |
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| 作者单位： | 安徽省农作物品质改良重点实验室安徽省农业科学院植物保护研究所; |
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| 摘 要： | [目的]研究了稻田水环境中吡虫啉的残留动态。[方法]田水样品采用二氯甲烷萃取,HPLC-UV测定不同田水样品中的吡虫啉残留量。[结果]田水中吡虫啉的平均添加回收率为89.69%～92.06%、标准偏差为3.01%～3.73%、变异系数为3.79%～4.46%,吡虫啉的最小检出量为1.0×10-9 g,在田水中最低检测浓度为0.005 mg/L。在安徽的试验结果表明,吡虫啉在田水中降解半衰期为4.4 d。[结论]10%吡虫啉乳油在稻田使用后,在田水中降解较快。
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| 关 键 词： | 吡虫啉 田水 残留动态 高效液相色谱法 |
Dynamics of Imidacloprid Residue in Paddy-field Water Environment |
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| ZHENG Lan et al. Dynamics of Imidacloprid Residue in Paddy-field Water Environment[J]. Journal of Anhui Agricultural Sciences, 2011, 39(15): 8994+9008-8994,9008 |
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| Authors: | ZHENG Lan et al |
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| Affiliation: | ZHENG Lan et al(Anhui Key Laboratory for Crop Quality Improvement,Institute of Plant Protection,Anhui Academy of Agricultural Sciences,Hefei,Anhui 230031) |
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| Abstract: | [Objective] The dynamics of imidacloprid residue in paddy-field water environment by HPLC was studied in this paper.[Method] Imidacloprid in the samples was extracted with dichloromethane and detected by HPLC with UV.[Result] The average of recoveries were ranged from 89.69% to 92.06%,the standard deviations were from 3.01% to 3.73%,and the coefficients of variation were from 3.79% to 4.46%.The minmium detectable amount of imidacloprid was 1.0×10-9 g,and the minimum detectable concentrations in paddy-field water was 0.005 mg/L.The test in Anhui province indicated that the half-lives of imidacloprid was 4.4 days.[Conclusion] 10% EC imidacloprid was applied in paddy-field;imidacloprid in water was more quickly degradated |
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| Keywords: | Imidacloprid Paddy-field water Residue dynamics HPLC |
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